Calculating device.



PATENTED DEC. 11, 1906.

V. B. NEAL.

CALCULATING DEVICE.

APPLICATION FILED 920.15, 1905.

UNITED STATES PATENT OFFICE.

Specification of Letters Patent.

Patented Dec. 1 1, 1906.

Application filed December 15,1905. Serial No. 291.830-

To all whom it may concern:

Be it known that I, VAN B. NEAL, a citizen of the United States, residing at Desoto, in the county of Brown and State of Ohio, have invented certain new and useful Improve ments in Calculating Devices, of which the following is a specification.

My invention contemplates means whereby a Storekeeper may calculate without the necessity of arithmetical computations the price of any measured amount of vendable commodities sold. For instance, it is well known that under the resent general practice if a storekee er sells a certain number of pounds of goo dozens or other numbers of articles, yards or other linear measures of dry goods or the like, or gallons of liquids it is necessary for him to figure with his penoil and pad the sellin price of the quantity or amount sold on a dozen, 8pc. 1 Y

The object; of my invention is to do away with the necessity of this com utation and provide an improved and simp e calculating device embod calculating-disks contain-, ing by predetermined calculations the selling price 0 various amounts, the saiddisks' eo-' acting with price-plates on a support so arranged that y turning the on the support or turning the support with respect to the disks until the quantity sold arrives at a predetermined point ,a pointer will indicate the price of the individufal !amount and she a e ate selling rice 0 t e uantity ispfi d of. The disks are to be interchangeable, and there are to be as man of them as may be desired, according to t c character of the business employing the invention and the diversified character ofthe goods sold.

For a full description of the invention and the merits thereof and also to acquire a knowledge of the details of construction of the means for effecting the result reference is to be had to the following description and accompanying drawings, in which Figure 1 is a face view of one embodiment of my invention. Fig. 2 is a vertical longitudinal sectional view on the line a: a: of Fig. l. Fi 3 is a horizontal section on the line 3; 'y of Fig. 1.

Corresponding and like parts are referred to in the followin description and indicated in all the views o?the drawings by the same reference characters.

Referring to the drawings, the numeral 1 designates a support which is provided with asis of one yard, one

and secured (proper Along one e a front-edge slot 2 and a sideopening slot 3 and a lon 'tudinally-extending guideway or slot 4. ntered in the edgeo enin slot 2 is any desired number of revo uble isks 5 which are mounted to rotate about their centers on shafts 5, each of which is provided with a clamping-nut 5", by which the disk may be turned the required distance. The shafts 5 are preferably located in recesses or guideway portions 6 in one edge of the side 0 coin slot 3. It is to be understood that t e sha 5' of the disks may be connected to any desired form of measuring device and so arranged that the calculations on the disks will indicate by the ositions of the disks the quantit passed t ough said measuring device; the present instance, however, the disks are turned by their clamping-nuts 5'? osition.

go of t e side-opening slot 3 there is secured to the support a number of price-plates 7 according to the number of disks mounted at one time upon the su port. These price-plates 7 are each provi ed at both ends with a longitudinal slot 7, in

whichset-screws 7 are mounted to adjustahly and detachably secure the said plates to the support so that the plates ma be chan ed whenever desired according to t e partieu ar disks ample ed therewith, and may also be longitudinal y adjusted whenever desired. These ricelates 7 are provided along one edge with suitable indicia, such as'numerals determining the price per dozen, price per yard, price per gallon, or price per pound, according to the disks employed and according to the commodity the aggregate price of which it is desired to determine.

8 indicates pointers. There are two of these pointers for each disk 5, and each pair of pointers are secured together and are adjustabiy mounted b a setscrew or similar device 8, working in t 1e slit or guideway 4. Each pointer 8 is rovided with two heads, the fingers8 of which are preferably ri idly secured together and are preferably on ored difl'erentl so as to have a contrasted appearance, so it at they may be readily distinguished. One of the fin ers points directly inward and toward the edge of the side opening 3, and said finger is desi ned by the position of the pointer 1n the gui eway 4 to point to any one of the selling prices contained on the pricelate 7, with which it is designed to coact. he other finger is angular in formation and preferably has its extremity pointing downwardly over the edge of 3 beyond the price-plate 7 andis esigned to oint to the various amounts on the revoluble disks 5 as said amounts arriveiin juxtaposition to the number on the price-plate pointed to by the first-named fin er.

The disks 5 are provided, pre ierably, on their rims with a circumferentially-extending series of numbers indicating the difl'erent quantities of goodsas, for instance, l 2 3 4 &c. referrin to eitherpounds, yards, gallons, or the dike or dozens -or single articles. The said disks also 'contain Within their margins a plurality of numbers arrived at by predetermined calcula- V tions-of thevarious prices cfthe articles-and the various quantitiesto be-sold.

In the practical-operation of the device l will'forthepurpose of description give a simle illustration of how the deviceworks. Let it be I assumed that it isdesired to compute the selling v rice of a quantity-of eggs. If eggsare se ingeat the timeat'twenty-five cents the dozen-andfourdozen are so1d,-the disks 5 will 'be turnediuntil themumera'l 4 shows beyond the edge of the side-opening slot 3, which will indicate that four dozen have been sold,-and-the =pointer 8 -will be arranged -with its pricedinger ;-pointing to *-the numeral25-on the -prieefiplate -7. Then the nEpper fingerof the pointer will, as -is ma est, point to $1.00"-on the disk '5, \vhich-withoutfurther-calculation-will tell the storekeeper what the "aggregate selling price amounts'to. Lmightive othermiore'complicated examplesnif t e use-of my -device, but deem that *the foregoing is sufficiently clear to show the operation:underdifferent circumstances.

While l'have here-shown two -disks and their rlated=parts, it -is evident-that one or any other 1 number df= disks and pointers'and the like maybe employedwithimthe scope of myinvention.

Having thus described the invention, what is claimed as-new is l. A device of the character described, comprising-a support providedwith an'ed opening-slot and aside-opening slot com nicating" therewith and 58180 i provided with a longitudinal guideway adjacent said sideopening slot, andrevoluble calculating-disks entered in said edge slot and mounted -to turn with-its face showing throughsaid sideopening slot and said' face contalning-calcu lations, aprice-p'late detachably and adjustably secured ad acent 0ne=edge of said-sideopening slot andcontaining figures denoting the different-selling prices ofcommodities by the pound,-or gallon-ortheilike, and-a pointer adjustably mounted in said guideway and the side-o em'ng slot I provided with two fingers designed to point .respectivelyto a num er on the price-plate and a predetermined number on said disk.

2. A device of the character described comprising a support, and revoluble disks mounted on said sup ort and provided with calculations on one ice, the support being provided with a guideway, a price-plate secured to said support and a pointer mounted in said guideway and provided with two fingers one of-which is designed to point to said price-plate and the other to the calculations on'said disks.

3. A device of the character described comprising a support havin an edge-opening slot and a side-o ening s 0t and a guideway adjacent the atter, and calculatingdisks entered in said edge-opening slot with one face appearing through the side opening slot and-revolubly mounted'in said support, means for turningsa'iddisk-to lldlddt-lndifferent adjusted positions, a=priceplate*-provided at each-end witha =longitudinal slot and a set-screwworking through said slot into said support whereby the .price-plate may be adjustably anddetachably-connectcd to the support, and a pointer-provided With I a set-screw working 11i said guideway and provided with two fingersone I of which is designed to point to different nunibers on the'price plate and the-other of -which-is-designed'to:point to calculations on'the-diskr 4. In a device of the character .7 described the combination of a series of interchangeable disks and a series -of interchangeable priceplatesfor' each of said disks, and a twofingered pointer des' ed to -po'int to the price-filates-and-said ks.

5. 1 a device :dfthe character described thecombination ofasupport, aseriesdfzintel-changeabledisksdesigned to be revolubly mounte onsaid support-and each rovided withbalcula'tions for articles sold y either the pound,-dozen,yard, or gallon or the like, a series of intercha eable price-plates -designed to be detachai b ly secured to said support and there being oneprice-plate'for each disk, the said *price-plates containing numbers indicating the different prices: per dozen or'peryard-or' the like according to the disk employed therewith, and a two-fingered pointer adjustably mountedon saidsupport and -designedto point respectively to the numbers on-said-price-plate and to the calculations on the disks.

In testimony-whereof I aflix my signature inpresence of two witnesses. i

VAN BQ NEAL. [L. s.] Witnesses:

A. P. 'SHELTON,

FRANCIS A. SPENCER. 

